Subject: Structural Analysis 1

Topic: Axial Force, Shear Force and Bending Moment

Difficulty: High

$\begin{align} &\sum M_A=0 (\circlearrowright +ve) \\&-V_D\times4+(20\times4)\times+10\times5=0 \\&\boxed{V_D=52.5\ kN} \\ \\& \sum F_Y=0\ (\uparrow +ve) \\& V_A+V_D=80=10=0 \\& \boxed{V_A=37.5\ kN} \\ \\ &\sum F_X=0 \ (\rightarrow+ve) \\&H_A=H_B=0 \end{align}$

1.Consider part AB:

2.Consider part BCE:

$\begin{align} &\textbf{1. SF calculation: } [\uparrow | \downarrow +ve] \\& SF_{BL} =0 \\& SF_{BR} =37.5\ kN \\& …